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Study Quote # 1  “In adjusted models, we observed 6.3 (95% CI 1.9–21.5) times more aerosol shedding among cases with vaccination in the current and previous season compared with having no vaccination in those two seasons.”

Study Quote #2 “ The association of current and prior year vaccination with increased shedding of influenza A might lead one to speculate that certain types of prior immunity promote lung inflammation, airway closure, and aerosol generation. This first observation of the phenomenon needs confirmation. If confirmed, this observation, together with recent literature suggesting reduced protection with annual vaccination, would have implications for influenza vaccination recommendations and policies.

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2 thoughts on “Influenza A vaccination associated with 6.3 times more aerosol shedding than non vaccinated

  1. This is quite the interesting piece of research from our national academy. It is very striking that the aerosol viral shedding is 6.3 times higher in those vaccinated versus unvaccinated. Also interesting is the finding that vaccinated individuals demonstrate increased lung inflammation. The most important part of the paper is the comment at the end noting that we really need to reconsider vaccination policy and practice. I have been expressing caution and concern about our flu vax process for years and its great to finally have some legit research demonstrating that the concern is warranted.

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